Overall Green Tropical Cyclone alert for HERNAN-20 in Mexico, on 26 Aug 2020 09:00 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

Overall Green alert Tropical Cyclone for HERNAN-20

in Mexico,

26 Aug 2020 09 UTC

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Meteorological source:

GDACS NOAA

Impact Single TC

GFS
HWRF
ECMWF

Impact based on all weather systems in the area

Impact

Tropical Cyclone HERNAN-20 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	GDACS
Exposed countries	Mexico,
Exposed population	No people in Category 1 or higher
Maximum wind speed	74 km/h
Maximum storm surge	0.2 m (28 Aug 19:00 UTC)
Vulnerability	Medium (Mexico)

GDACS Score

GDACS alert score for Tropical Cyclones is 0.5 (GREEN Alert), 1.5 (ORANGE Alert), 2.5 (RED Alert)
For more info on GDACS alert score click here.

	Wind	Storm surge	Rainfall	GDACS score
Current	65 km/h	0.2 m	n.a.	0.5
Overall	74 km/h	0.2 m	n.a.	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

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Wind

65 km/h Current Max.

Up to 260000 people in Tropical Storm strength or higher (see SSHS)

Impact Timeline

Alert	N°	Date (UTC)	Max Winds (km/h)	Population in Tropical Storm or higher	Population in Cat 1. or higher	Countries
	1	26 Aug 2020 09:00	65	260 thousand	No people	Mexico

Bulletin Timeline

N°	Date (UTC)	Category (SSHS)	Max winds (km/h)	Population in Cat.1 or higher	Population in Tropical Storm or higher	Location (lat, lon)
1	26 Aug 2020 09:00	Tropical depression	56	no people	no people	17.5, -106.7
1	26 Aug 2020 18:00	Tropical depression	56	no people	no people	18.1, -106.3
1	27 Aug 2020 06:00	Tropical storm	65	no people	no people	19, -106.3
1	27 Aug 2020 18:00	Tropical storm	65	no people	no people	20.1, -107
1	28 Aug 2020 06:00	Tropical storm	65	no people	no people	21.3, -108.1
1	28 Aug 2020 18:00	Tropical storm	65	no people	260000 people	22.3, -109.4
1	29 Aug 2020 06:00	Tropical depression	56	no people	no people	23.3, -111.3
1	30 Aug 2020 06:00	Tropical depression	46	no people	no people	23.3, -114.1
1	31 Aug 2020 06:00	Tropical depression	37	no people	no people	22.7, -115.5

Actual track of the current bulletin

The alert for forecast greater than 3 days is limited to Orange level.

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Exposed population - AoIs

Exposed population in the potential affected countries, provinces and populated places

Countries

Country
Mexico

Provinces

Region Province	Country
Baja California Sur	Mexico

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Name	IATA Code	Elevation (m)	Usage	Runway type	IFR	Runway Length (ft)
Cabo San Lucas		139				0
Los Cabos International	SJD	109	Civ.	Paved	Yes	9800

Ports

Name	LOCODE	Country
San Lucas		Mexico
San Hose Del Cabo		Mexico

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Rainfall

Rainfall accumulation of the past 24h, as detected by the Global Precipitation Measurement mission of NASA. For more information, see https://www.nasa.gov/mission_pages/GPM/main/index.html.

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StormSurge

0.2 m

The maximum Storm surge height is 0.2m in La Puerta, Mexico. This height is estimated for 28 Aug 2020 19:00 UTC .

The JRC has developed an experimental global storm surge model. The calculations are published about 20 minutes after a new advisory is detected by GDACS. The calculations identify the populated places affected by storm surge up to three days in advance, using the forecasted track. When forecasts change, the associated storm surge changes too and alert levels may go up or down. All links, data, statistics and maps refer to the latest available calculation. If the calculation for the last advisory is not completed, the latest available calculation is shown.

Locations affected by Storm surge (30 locations). Calculation based on advisory number 1 of 26 Aug 2020 09:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	28 Aug 2020 19:00	La Puerta	Mexico	0.2
	29 Aug 2020 17:00	El Guatamota	Mexico	0.2
	29 Aug 2020 00:00	Pozo de Cota	Mexico	0.1
	27 Aug 2020 05:00	Cuitzmala	Mexico	0.1
	28 Aug 2020 05:00	El Nuevo	Mexico	0.1
	28 Aug 2020 05:00	Santa Cruz	Mexico	0.1
	27 Aug 2020 05:00	Chola	Mexico	0.1
	27 Aug 2020 17:00	Aquiles Serdan	Mexico	0.1
	27 Aug 2020 17:00	Ipala	Mexico	0.1
	27 Aug 2020 17:00	Corrales	Mexico	0.1
	28 Aug 2020 14:00	La Palmita	Mexico	0.1
	28 Aug 2020 14:00	Caimanero	Mexico	0.1
	28 Aug 2020 14:00	Jarilla	Mexico	0.1
	28 Aug 2020 22:00	El Tule	Mexico	0.1
	28 Aug 2020 22:00	San Lucas	Mexico	0.1
	27 Aug 2020 05:00	Chamela	Mexico	0.1
	27 Aug 2020 05:00	La Manzanilla	Mexico	0.1
	27 Aug 2020 05:00	Barra de Navidad	Mexico	0.1
	27 Aug 2020 05:00	Estrecho	Mexico	0.1
	28 Aug 2020 14:00	Cuantla	Mexico	0.1
	28 Aug 2020 18:00	Isla de Palmito del Verde	Mexico	0.1
	28 Aug 2020 14:00	Novillero	Mexico	0.1
	29 Aug 2020 00:00	La Tinaja	Mexico	0.1
	28 Aug 2020 01:00	San Blas	Mexico	0.1
	28 Aug 2020 19:00	Cuamecate	Mexico	0.1
	27 Aug 2020 05:00	El Ciruelo	Mexico	0.1
	27 Aug 2020 05:00	Cuyutlan	Mexico	0.1
	27 Aug 2020 05:00	El Real	Mexico	0.1
	27 Aug 2020 05:00	Chupadero	Mexico	0.1
	28 Aug 2020 14:00	Florida	Mexico	0.1

Disclaimer
While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information.
The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.
The designations employed and the presentation of material on the map do not imply the expression of any opinion whatsoever on the part of the European Union concerning the legal status of any country, territory or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.